baber/WOPTO huggingface dataset:
Patent GB-496595-A (GB)
Title: Improvements in air-intakes for internal-combustion engines
IPC: F02M35/04
Filed: 1937-06-23
Abstract: 496,595. Filtering air charge ; spray carburetters. BRISTOL AEROPLANE CO., Ltd., FEDDEN, A. H. R., and CULVERWELL, S. June 23, 1937, No. 17516. [Classes 7 (ii) and 7 (iii)] [Also in Group XXVIII] The air intake of an aircraft engine, comprising a casing 20 containing a filter, is located around the driving connection to the airscrew shaft 18. In a radialcylinder engine, the intake is concentric with the entrance 13 for the cooling air to the engine cowling 11. The air enters annular, or quadrant-shaped, chambers 26 by gauze-covered ports 21, and it flows through staggered holes 28, 31 with radially - arranged intermediate layers 29 of filtering material, e.g. porous cotton, located between wire gauze sheets or perforated plates. It leaves by an annular chamber 32 connected by diverging pipes 24 to the carburetter. Further slots on the inner and outer sides of the casing 20 admit air direct to the spaces in front of the filtering material. A valve-controlled byepass 25 is provided for use if the filter becomes choked.
Patent GB-966790-A (GB)
Title: Improvements in or relating to collapsible bands
Inventor: WOOD HAROLD
IPC: E01F13/02
Filed: 1962-05-07
Abstract: 966,790. Ornamenting. CHRISTIE & JAY Ltd. April 26, 1963 [May 7, 1962], No. 17517/62. Heading B6G. A collapsible band for use as a warning barrier or decorative garland comprises a series of units joined end to end, each unit comprising two end faces 2 and from two to eight (four as shown) flexible connecting faces 1. Each end face is provided with perforations 4, 5, 6, 7, 8 protected by eyelets. A support member 9 comprising a steel wire in a sheath passes through the perforations 8 and is clamped at 14 at each end into a loop for attachment to a fixed support. The terminal end-faces each comprise a thickened portion of flexible material, and through two of its perforations is passed an attachment member 16 having its inner ends clamped at 17 and being clamped at 18 into a loop.
Patent GB-1116915-A (GB)
Title: Snap action electric device
IPC: H01H61/06
Filed: 1966-04-21
Abstract: 1,116,915. Thermal switches. TUNG-SOL INDUSTRIES Inc. 21 April, 1966 [26 April, 1965], No.17580/66. Heading H1N. A snap-action thermal " flasher " comprises a resilient conducting vane provided with an inherent curvature about one axis caused by one or more ribs tapering from a maximum height and/or width adjacent the periphery of the vane to a minimum height and/or width adjacent the centre of the vane, a pull ribbon secured to the vane under tension so as when cold to bow the vane away from its inherent curvature to buckle it about an axis 90 degrees to the said one axis, and when heated, expanding to allow the vane to snap back to its inherent curvature. In Fig. 9, the vane 62 carries a contact 78 which engages a fixed contact 77 mounted on a post 76 when ribbon 72 is hot. Ribbon 72 is heated by an insulated coil 74 which is shorted by the vane when contacts 77, 78 are closed so cooling occurs and vane snaps to open contacts 77, 78. Platforms 70 on the vane prevent coil 74 from contacting the vane when the ribbon is cold, but allow the coil 74 to contact the vane when the ribbon has expanded and the vane has snapped to its inherent curvature to promote cooling. In a modification (Figs. 13-16), the vane carries a contact which engages the fixed contact when the ribbon is cold, and the ribbon is heated by current passing through it. The movable contact may be mounted on the ribbon. The vane may be rectangular, square, circular, or oval. One or more holes may be provided at the centre of the vane. The ribbon overlies the convex side of the inherent curvature, and the ribs may be concave or convex on the side facing the ribbon.
Patent GB-422842-A (GB)
Title: Improvements in or relating to road-making and-repairing apparatus
IPC: E01C23/085
Filed: 1933-06-20
Abstract: 422,842. Road-surface levelling machines. JOHNSTON, J. T. M., 35, Crutched Friars, London. June 20, 1933, No. 17604. [Class 107] Relates to apparatus for planing or trimming off irregularities of road surfaces, or for distributing newly deposited material thereover. According to the invention, the apparatus comprises one or more blades 13, arranged in bearings transversely of a vehicle 10, and means are provided for imparting a lengthwise oscillating movement to each blade as the vehicle moves along. In the construction shown, the blade is carried by brackets 12 provided with rollers 15, 16, engaging respectively with the upper surface of the blade and the lower face of a bracket secured thereto. The blade is reinforced throughout its length by anglesection girders 14, and near its centre by a pair of angle-section girders 20, the latter forming a channel which houses a block 21. This block is connected by a crank 22 to an eccentric pin 23 of a bevel wheel 24 which is driven through gearing 26..29 by the rear axle 30 of the vehicle. The axle is secured to one or both of the road wheels 11 and may be coupled to the sprocket wheel 29 by a clutch 31. The thrust on the blade is taken by two rollers 18. The blade may be flat or of curved cross-section and may be mounted with its face inclined to the vertical such that the lower edge is in front of the upper edge. In a modification, the face of the blade is horizontal and the front edge thereof is serrated and lies close to the lower forward part of a fixed rake or serrated blade which is secured to the vehicle. In another arrangement, two rakes are provided, one in front of and the other behind the reciprocating blade. In all constructions, the blade may be raised or lowered by mounting the brackets 12 on a frame which is vertically adjustable on the vehicle frame. Specification 1564/07, [Class 107], is referred to.
Patent GB-320644-A (GB)
Title: Improvements in and relating to apparatus for drying materials
IPC: F26B23/02
Filed: 1928-06-18
Abstract: 320,644. Carrier Engineering Co., Ltd., Fowler, A., and Robertson, K. J. R. June 18, 1928. Endless-band conveyers, articles carried by; air and gases, controlling circulation of.-A drying oven A has a furnace flue K running along it with an associated air duct through which the drying air flows in an opposite direction to the flue gases and is heated before entering the oven. The end B of the oven is closed and the material to be dried is carried through the oven and returned to the open end by a conveyer E of known type. The top of the flue K is corrugated and the combustion gases are drawn therethrough from the oil-fired furnace H by a fan M. Air which is preheated in ducts 1 alongside the flue, is circulated by a fan 2 to a duct 4 situated over the flue. The heated air passes to slotted conduits 5 from which it issues in the form of sheets into the oven, in which it rises centrally and passes down at the sides into ducts @ and back to the ducts 1. To induce a flow of warm air from the closed end of the oven and prevent the entry of cold air at the open end, part of the air is withdrawn through the pipes 9, 10 by the fan M to the chimney N, from which part of the gases may be returned to the furnace through the pipe O. Fresh air is drawn into the ducts 1 through damper-controlled openings. The dried material is cooled by a current of air from fans 12.
Patent GB-687484-A (GB)
Title: Improved method for the production of methionine hydantoin
IPC: C07D233/72
Filed: 1949-07-04
Abstract: A method of making methionine hydantoin comprises passing methyl mercaptan into acrolein having a minor amount of organic peroxide dissolved therein, until at least 0.7 molecular equivalent of methyl mercaptan is consumed per mole. of the acrolein starting material while maintaining the mixture at an absolute temperature of from 0.5 to 1.5 atmospheres and at temperatures between -5 DEG  and 30 DEG  C. during introduction of the methyl mercaptan, thereafter separating b -methylmercapto-propionaldehyde from the mixture, heating one molecular equivalent of the b -methylmercapto-propionaldehyde with at least one molecular equivalent of an alkali metal cyanide and at least three chemical equivalents of ammonium salt, including at least one molecular equivalent of ammonium carbonate, in the presence of water as a reaction medium to a reaction temperature between 40 DEG and 120 DEG  C. treating the resultant mixture with a mineral acid in amount sufficient to bring the mixture to a pH value of less than 4, heating the acidified mixture at temperatures between 50 DEG  and 100 DEG  C. and separating from the resultant mixture the methionine hydantoin which is formed. Organic peroxides mentioned are diacetyl and dilauroyl peroxides. Any residual peroxide remaining in the reacted mixture may be decomposed by warming with an alkali such as sodium or potassium carbonate and the b -methylmercapto-propionaldehyde is separated by fractional distillation.  Ammonium salts mentioned which may be used with the ammonium carbonate are the chloride, bromide, sulphate or acetate. In the example methyl mercaptan is passed into acrolein containing dissolved diacetyl peroxide with cooling, further peroxide being added during the reaction and b -methylmercapto-propionaldehyde is obtained on fractionation of the products.  b -methylmercapto-propionaldehyde is heated with ammonium carbonate, sodium cyanide and water, the product is treated with concentrated hydrochloric acid, further heated, cooled and filtered to obtain a residue of methionine hydantoin, i.e. 5-(b -methylmercaptoethyl) hydantoin.  Further product is extracted from the filtrate with acetone and recrystallized from water.  Specifications 630,139, 653,497 and 687,483 are referred to.
Patent GB-313752-A (GB)
Title: Improvements in stands for supporting folding wringers and table tops
IPC: D06F1/00
Filed: 1928-06-19
Abstract: 313,752. Burt, P., Burt, J. S., Burt, T. W., Burt, J. W., and Burt, G. P., (trading as Acme Manufacturing Co.). June 19, 1928. Stands for wash-tubs and wringers.-A stand for supporting a wringer, clothes basket, wash-tub &c. and which, when these articles are not in use, may support a table cover, comprises two end frames 1, each of which comprises a pair of legs bridged at their upper ends by a cross-bar 2. The frames are connected by a transverse frame F which comprises a pair of parallel rails 5, 6, and a pair of side rails 4 and a V-shaped member 8. A third rail 23 which supports another V-shaped member 24 may rest upon the side rails. The legs of the side frames are connected further by a cross-member 9 near their bases and by a crossrail 11 near their upper ends, the cross rail being formed with apertured lugs 13 in which the wringer is held. Catches 16 are provided to engage under the bars 2 and, when these are released, the wringer may be folded. When the wringer is in operative position the table cover 21 may be placed partly on the side frame so as to be adjacent the wringer and receive the clothes. as they come from the wringer. When the wringer is folded the table cover may be placed wholly on the side frames and be retained by pins which engage in holes 21<1>. A foot steadying piece 22 is provided on one leg and the legs may be provided with rubber feet 3.
Patent GB-145563-A (GB)
Title: Improvements in or relating to reamers
IPC: B23D77/04
Filed: 1920-06-29
Abstract: 145,563. Pechinot, L. F. J. May 2, 1919, [Convention date]. Reamers.-In a reamer adapted for either cylindrical or taper bores, the blades d, slidable in radial grooves, have inner edges kj, ih bearing on balls p, q controlled by rods b, c, screwed into the hollow body of the reamer. By giving different movements to the rods, conical bores may be produced. In the modification shown in Fig. 4, the blades are moved by means of the conical wedges p<1>, q<1>. In a further modification, the wedges p<1>, q<1> are connected together by a rod, and the radial adjustment of the blades is effected by a single screw.
Patent GB-1304561-A (GB)
IPC: C08L27/00
Filed: 1970-04-14
Abstract: 1304561 Polyvinyl chloride compositions ROHM & HAAS CO 14 April 1970 [15 April 1969] 17697/70 Headings C3G and C3P Compositions comprise (a) polyvinyl chloride and (b) a modifying amount of a polyester of formula G(AG) n AG where n is an average number greater than 1, A is at least 75 mole per cent terephthalic acid residues, the balance if any being other dibasic acid residues, and G is at least 75 mole per cent 1,2-propylene glycol residues, the balance if any being other diol residues. Component (a) may be a homopolymer or copolymer with minor proportions of copolymerizable monomers, halogenated vinyl chloride polymer or blend of such a material with plasticizers and/or modifiers. Other glycols which may be used in the polyester include alkylene, polyalkylene and cycloalkylene diols and bisphenols, and other acids include other phthalic, naphthalene dicarboxylic, cycloalkylene dicarboxylic and substituted aryl dicarboxylic acids, many of which are listed. The polyesters may be prepared by bulk, solution or interfacial condensation of the glycols with the acids or chlorides or alkyl esters thereof in the presence of lead, tin, calcium, zinc or antimony salts together with organometallic compounds of tin or titanium; and the preparation of a resin by reacting propylene glycol with dimethyl terephthalate in the presence of litharge is described. Examples describe compositions of polyvinyl chloride with (1) glyceryl monostearate, dibutyltin mercaptopropionate and propylene terephthalate, methyl methacrylate/ethyl methacrylate copolymer, dioctyl phthalate, propylene sebacate or dicyclohexyl phthalate, or with barium/cadmium laurate and propylene terephthalate; with (2) propylene terephthalate; with (3) trioctyl mellitate, calcium carbonate, titanium dioxide, methyl methacrylate/butadiene-styrene copolymer graft polymer, barium/ cadmium laurate and propylene terephthalate or propylene sebacate; with (5) propylene terephthalate; with (6) glyceryl monostearate, dibutyl tin mercaptopropionate and propylene terephthalate; with (7) dibutyltin mercaptopropionate and propylene/ethylene terephthalate, ethylene isophthalate, 1,2-propylene isophthalate, 1,3-butylene isophthalate, 1,3-butylene terephthalate, propylene/ethylene isophthalate, propylene isophthalate/terephthalate or propylene sebacate; and with (8) glyceryl monostearate, dibutyl tin mercaptopropionate and propylene terephthalate or propylene sebacate.
Patent GB-613166-A (GB)
Title: Apparatus for drying, heating, and/or cooling flowable solids
IPC: F26B17/12
Filed: 1946-06-13
Abstract: 613,166. Drying granular material. ERISMAN, J. L. June 13, 1946, No. 17801. [Class 34(ii)] In a drying-apparatus a drying fluid is passed through chamber A from a duct 34 and is conveyed away by a second duct 38. The material to be dried is fed into the chamber by means of a hopper 76 co-operating with a doctor blade 77 and a transverse baffle 78. Flights 66 pick up the material and elevate it until it cascades over the elevating flights, passing through the drying medium in a shallow stream in so doing. The apparatus is canted sideways by a wedge 31, whereby the material which is fed in at the left-hand side moves to the right in falling vertically over the flights. Dried material is collected by a hopper 80 located at the right-hand side of the apparatus. The degree of sideways cant and vertical inclination may be varied to suit the material being dried. Specification 613,206 relating to a method of drying granular material is referred to.
Patent GB-885233-A (GB)
Title: Improvements in or relating to connections between electric conductors
IPC: H01R4/20
Filed: 1957-06-04
Abstract: 885,233. Sleeve-couplings. GENERAL ELECTRIC CO. Ltd., RISTS WIRES & CABLES Ltd., COWEN, W. H., WALES, J., and SILVER, R. J. July 11, 1958 [June 4, 1957], No. 17813/67. Class 38 (1). A sleeve connector 7, crimped to the ends of wires 2 and 3 by crimps 15, 16 and on to the insulation by crimps 18, is embedded in a mass of polyethyene 19 (Fig. 4), which also extends over the insulation of the wires. The connector may be adapted for three or four wires and may have one end larger than the other (Fig. 6, not shown).
Patent GB-903591-A (GB)
Title: Improvements in or relating to indicators for article shaping apparatus
Inventor: BAKER PETER
IPC: B21J9/12
Filed: 1959-05-27
Abstract: 903,591. Forging presses. BRITISH IRON & STEEL RESEARCH ASSOCIATION. Aug. 15, 1960 [May 27, 1959], No. 18047/59. Class 83 (4). An indicator for a press, particularly a forging press, has means for detecting the presence of a workpiece in the press or initial thickness of the workpiece. An hydraulic forging press of the kind described in Specification 874,908 has its upper tool 50 mounted on a platen 51 carrying a rack 52 driving a pinion in a gear-box 53. The latter carries a rotary potentiometer 56 and a tacho-generator T. When the platen 51 is lowered the voltage from the potentiometer is applied through a switch S to an indicator I which thus varies with the movement of the platen. The indicator may be controlled remotely through a servo mechanism. Upon the tool 50 engaging the workpiece, the switch S opens and the indicator is then held stationary at a position corresponding to the initial thickness of the ingot to be forged. Switch S may be a pressure-responsive switch in the hydraulic fluid supply line 67; alternatively it may be opened by the drop in output from the tacho-generator T or be controlled by a microphone responsive to the pitch of the noise from the hydraulic circuit. An alarm AL operates if the switch S is not opened, thus indicating the absence of a workpiece in the press. The switch S may be placed in the press control circuit to stop the press when the ingot is engaged. Instead of the potentiometer 56, a moving coil transformer or a linear transducer pulse generator or coded commutator may be used. Specification 892,216 also is referred to.
Patent GB-456885-A (GB)
Title: Improvements in or relating to tables
IPC: A47B1/02
Filed: 1936-06-30
Abstract: 456,885. Tables. BURRILL, R., 55, Amberton Road, Easterly Road, Leeds. June 30, 1936, No. 18074. [Class 52 (iii)] In an extending table of the kind with a disappearing centre section 8, the end leaves 1 are connected, so as to move simultaneously, by an endless flexible wire, band, cord, or the like 11 carried by pulleys 10 in the table frame 3. The upper and lower reaches of the cord 11 are connected by bolts &c. 13 to transverse bars 5, the ends of which move in slots 6. These bars connect the slide bars 2 of the leaves 1, and carry wedge-shaped members 16 which engage with V-shaped blocks 15 on the underside of the centre leaf 8, and raise it to the level of the end leaves. In a modification, the end leaves are each made in two hinged-together parts ; as the table is extended, the centre section falls, and is then covered by turning inwards the innermost of the two hinged parts of the end leaves.
Patent GB-987095-A (GB)
Title: Improvements in or relating to injection moulding machines
IPC: B29C45/76
Filed: 1961-05-18
Abstract: 987,095. Injection moulding. BRITISH UNITED SHOE MACHINERY CO. Ltd. May 8, 1961 [May 19, 1960], No. 18076/61. Heading B5A. An injection-moulding machine comprises a mould cavity defined by movable members 10, 12, 14 and fed with moulding material by an injection head 22 through a passage 28 provided with a cut-off valve which is operated by a solenoid 30 and a spring 38, the solenoid being de-energized to close the valve by a microswitch in a cut-off device being opened when the mould cavity is full and moulding materialflows into a recess 87. The cut-off device is lodged in a housing 47 and comprises a set of bellows coupled to the micro-switch and connected with a source of compressed-air through a pipe 52, a junction-box 50 and a pipe 48. The compressed-air escapes to the atmosphere through a pipe 54 and conduits 80, 86 until moulding material fills the mould cavity and recess 87, as shown. When the flow of air through conduits 80, 86 is interrupted by the material filling recess 87 the compressed-air inflates the bellows in the cut-off device and causes the micro-switch to open. Specification 930,840 is referred to.
Patent GB-863816-A (GB)
Title: Improvements relating to railway vehicles
IPC: B61F5/36
Filed: 1957-06-07
Abstract: 863,816. Rail vehicle suspensions. BIRMINGHAM RAILWAY CARRIAGE & WAGON CO. Ltd., METALASTIK Ltd., and SCHOFIELD, N. June 4, 1958 [June 7, 1957], No. 18122/57: Class 103(6). In a railway vehicle bogie equalizers 17, Fig. 2, are resiliently supported in stirrups 16 beneath axle boxes 11 by rubber shock absorbing members 18 interposed between mounting surfaces on the equalizers and stirrups. Each member 18 comprises pad elements bonded on their inner face to a central metal plate and on their outer face to attachment plates 19, one of which is secured to the equalizer and the other to the stirrup by a flange (not shown) to retain the plate against longitudinal displacement relatively to the equalizer. The mounting surfaces of the equalizer are downwardly convergent and the opposed surfaces of the stirrup are parallel thereto so that the shock absorbing members 18 therebetween are stressed partly in compression and partly in shear. The axle boxes 11, Fig. 1, have vertical guide means comprising radius arms 13 connected by anchor lugs 12 at opposed sides of the boxes to the vehicle underframe 10 by pivoted joints 15 on trunnion plates 14 having yieldable rubber bushes. Each equalizer 17 has a shock absorber 24 connected to the equalizer and underframe, and a centrally-disposed bracket 23 which mounts the lower cup of a pair of nested compression springs which are secured by an upper cup to the underframe 10.
Patent GB-562314-A (GB)
Title: Process for the manufacture of substituted derivatives of 3-ketotetrahydrothiophene
IPC: C07D333/38
Filed: 1942-12-22
Abstract: Compounds of the formula:-  <FORM:0562314/IV/1> where R1 is an alkyl group and R2 is an alkyl or substituted alkyl or fatty acid ester group are prepared by reacting compounds of the formula:- <FORM:0562314/IV/2> which can be prepared by the process described and claimed in Specification 562,313, with an alkyl or substituted alkyl halide or halogenated fatty acid ester in the presence of an alkaline condensing agent such as sodium ethylate.  In examples: (1) 2-carbethoxy-3-keto-tetrahydrothiophene, prepared as in Specification 562,313 is treated, in the presence of sodium ethylate, with b -iodopropionic ethyl ester.  The product is acidified, extracted with ester, washed, dried, and distilled under reduced pressure to yield 2 - carbethoxy - 2 - (b  - carbethoxyethyl) - 3 - keto - tetrahydrothiophene; (2) in analogous manner using #s-iodopropylmalonic ethyl ester there is obtained 2 - carbethoxy - 2 - (#s - dicarbethoxy butyl)-3-keto-tetrahydrothiophene.
Patent GB-562484-A (GB)
Title: Improvements in cooling systems for internal combustion engines
IPC: F01P7/16
Filed: 1942-12-30
Abstract: 562,484. Radiators. AUSTIN MOTOR CO., Ltd., and CHARLES, H. N. Dec. 30, 1942, No. 18475. [Class 64 (iii)] In a radiator B through which water is circulated by a pump G through upper and lower connections E, F, the connections are in free communication with one another through a vertical passage or well H separate from the radiator.
Patent GB-774753-A (GB)
Title: Improvements in or relating to electric lighting fittings
IPC: F21V3/02
Filed: 1955-06-27
Abstract: 774,753. Discharge lamps. PHILIPS ELECTRICAL INDUSTRIES, Ltd. June 27, 1955 [June 30, 1954], No. 18499/55. Drawings to Specification. Class 39(1). [Also in Group XI] In a lighting fitting (see Group XI) the light source may be a low-pressure sodium vapour discharge lamp surrounded by an envelope containing nitrogen, the envelope being surrounded by an evacuated double-walled glass sheath, or it may be a fluorescent lamp comprising a tube having two superposed layers of fluorescent material, the inner layer extending only part way around the tube to provide a lengthwise strip covered by one layer only, this strip in operation being brighter than the remaining part of the tube.